Horseshoe cake, elegantly known as "incense cake", is Xiamen, Quanzhou is known as a good point. Tongan's horseshoe cake is the most famous. Horseshoe cake is a traditional local specialty of Jiangyin. In the late Qing Dynasty, it was copied from the pastry of the same name in Zhenjiang, and was improved to become a noodle. The product is made from the finest flour, red beans as raw material, nuts as supplementary material, and fermented with glutinous rice. The product gets its name from the fact that it is thick around and thin in the middle and resembles a horseshoe. It is characterized by both crispness, fluffiness and softness, with excellent color, aroma and taste. Horseshoe pastry was originally a court food in the Tang Dynasty. According to legend, the Tang King Li Shimin's original wife, Empress Changsun, when she went home to visit her relatives in Shaanxi Province, she carried horseshoe cake as a gift. The townspeople tasted and marveled at it, and with the consent of the Empress, her mother's family sent a dexterous person to learn from the accompanying royal chef to make the craft of this excellent point, which was later introduced to the people. The Tang Dynasty opened up the Fujian border, this palace delicacies with the south of the people into southern Fujian. Horseshoe cake production will be attached to the vertical oven wall baking, cake is horseshoe-shaped, so called. Poets in the Qing Dynasty wrote poems in praise of horseshoe cake, which means that it has a long history and has been appreciated by writers and writers. Its raw materials are flour, sugar, malt, lard; pastry, filling and other production processes, kneaded after the whole pasted on the vertical oven wall baking. This kind of cake is crispy and sweet filling, and the volume expands after boiling water, so it is also called "bubble cake". Horseshoe cake is a lightweight food for traveling and a gift for friends and relatives. It is hot and dry items, caramel and nutritious, fried in sesame oil, and women's "menstruation" hot tonic. Before the liberation, Tong'an has "double deer", "Jinji", "Qingchun" several old store No. production, Xiamen's "double Tiger Xiamen's "Double Tiger" also has a history of 60 or 70 years. Now, there are several food factory production of horseshoe cake.